Methyl substituted bicyclo AD2.2.1 BDheptan nitriles of the general formula (A), wherein the methyl group occupies the position C-4 or C-5, the residue R1 is at C-2 and the nitrile group is at C-3 or alternately the residue R1 is at C-3 and the nitrile group is at C-2, single linking exists between C-5 and C-6, and the sinuous lines represent stereoisomer forms, are new and may be used advantageously as scents, respectively as components of perfume oils for cosmetics or consumer goods. Their production in a preferred mode is effected by first obtaining from an aldehyde of formula (6) resp. (7) the corresponding aldoxine (10) resp. (11), and then obtaining the corresponding nitrile (12) resp. (13) by elimination of water.